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Finding the Fourth Proportional to 452,844.60, 679,137.30 and 137,225.40

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Solution

The fourth proportional to 452,844.60, 679,137.30 and 137,225.40 is: 205,798.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,844.60 : 679,137.30 = 137,225.40 : x
  2. Step 2: Convert to fraction form
    452,844.60/679,137.30 = 137,225.40/x
  3. Step 3: Cross multiply
    452,844.60x = 679,137.30 × 137,225.40
  4. Step 4: Simplify right side
    452,844.60x = 93,194,887,647.42
  5. Step 5: Solve for x
    x = 93,194,887,647.42/452,844.60
  6. Step 6: Final answer
    x = 205,798.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.